Micro Snitch - Micro Snitch is an ultra-light menu bar application that operates inconspicuously. It helps figuring out if someone’s spying on you.
WebOProxy - WebOProxy is the most advanced free web proxy service which powered by Tor network. Use Proxy Site to bypass filters and unblock blocked sites like facebook, video streaming sites like youtube and other sites anonymously.
Oversight - Get notified when an app accesses your Mac's camera or mic
Little Snitch - Little Snitch is a firewall application that monitors and controls outbound internet traffic.
CroxyProxy - CroxyProxy is the most advanced free and secure web proxy.
ProxySite - free web proxy in the browser